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Free AI tools to build an AI agent or workflow

The best free, open-source AI tools to build an AI agent or workflow are Langflow, Flowise, Dify, and CrewAI. Each one is free, scored, and labeled with what it takes to run.

I want to…
make AI videogenerate imagesupscale or restore a photoremove a backgroundtranscribe audio or videoturn text into speechclone or change a voicemake musicchat with AI privatelychat with my documentswrite code with AIbuild an AI agent or workflowtrain or fine-tune a modelwrite stories or role-play
Set my computer's specs
Langflow screenshot
Agents and workflows4.8

Langflow iconLangflow

Build AI apps and agents by dragging and connecting blocks, with little or no code.

  • Some setup
  • Windows · Mac · Linux
Code
Open source, MIT
Models
Your choice, open or paid
Runs
Your computer or the cloud
Real cost
Free app, model fees vary
Get it
Flowise screenshotArchived
Agents and workflows3.8

Flowise iconFlowise

A visual builder for chatbots and AI workflows that you can host yourself.

  • Some setup
  • Windows · Mac · Linux
Code
Open source
Models
Your choice, open or paid
Runs
Your computer or the cloud
Real cost
Free app, model fees vary
Get it
Dify screenshot
Agents and workflows4.5

Dify iconDify

A platform for building and running AI apps, with workflows, document search, and monitoring.

  • Some setup
  • Windows · Mac · Linux
Code
Open source
Models
Your choice, open or paid
Runs
Your computer or the cloud
Real cost
Free to self-host
Get it
CrewAI screenshot
Agents and workflows4.5

CrewAI iconCrewAI

A framework for teams of AI agents that divide up a job and work on it together.

  • For tinkerers
  • Windows · Mac · Linux
Code
Open source, MIT
Models
Your choice, open or paid
Runs
Your computer or the cloud
Real cost
Free, model fees vary
Get it
Browser Use screenshot
Agents and workflows4.7

Browser Use iconBrowser Use

Lets an AI agent operate a web browser to fill forms, click through sites, and gather information.

  • For tinkerers
  • Windows · Mac · Linux
Code
Open source, MIT
Models
Your choice, open or paid
Runs
Your computer or the cloud
Real cost
Free, model fees vary
Get it